A few years ago I wandered around northeastern North Dakota and northwestern Minnesota collecting images of selected common Gall Wasps, Sawflies, Gall Midges, and Tortoise Scales. These images are collected and archived below with the hope that they may one day be useful to local naturalists. Enjoy!
Cynipidae or Gall Wasps
Besbicus mirabilis (Western Speckled Oak Gall): http://www.youtube.com/watch?v=pQ5Cwk5CJ-Y
Neuroterus saltatorius (Jumping Oak Gall): http://www.youtube.com/watch?v=WTBeTkwpNrk
Tenthredinidae or Sawflies
Nematus ribesii (Currant Sawfly Larva): http://www.youtube.com/watch?v=GSRBK0tZODY
Periclista (Sawfly Larva): http://www.youtube.com/watch?v=De6mf2kKIM8
Pontania (Willow Leaf Gall): http://www.youtube.com/watch?v=zVCDmKjZT80
Tenthredo varipicta (Sawfly Adult): http://www.youtube.com/watch?v=mcYFSKtOLy4
Tethida barda (Black-headed Ash Sawfly Adult): http://www.youtube.com/watch?v=_hT4Al63Irg
Cecidomyiidae or Gall Midges
Continaria negundinis (Gouty Veingall Midge Larva): http://www.youtube.com/watch?v=yetDOPxrlKg
Coccidae or Tortoise Scales
Pulvinaria (Cottony Scale): http://www.youtube.com/watch?v=0UMBX83zjzA
Dakota Naturalist 